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A baseband link uses an equalized telephone line to send polar NRZ current pulses at 10 ksps. The link uses ideal low pass RRC filters with α = 0.5. The output power of the digital transmitter is 0 dBm and the link has a constant attenuation of 50.0 dB. At the input to the receiver, the equivalent AWGN noise power is – 70 dBm. Assume implementation margin is 0 dB when calculating BER in parts (c) and (d).
a. What is the minimum bandwidth of the telephone line to transmit the pulses without distortion?
b. What is the signal to noise ratio at the input to the receiver in dB and as a power ratio?
c. What is the bit error rate at the receiver output and the average time between errors?
d. Rain leaks into a junction box in the link and causes the noise power at the receiver to increase to -60 dBm.
e. What is the bit error rate at the receiver output and the average time between errors in part (d)?
A single phase two winding transformer having rating: 20 KVA,480/120 V, 60 Hz A source connected to the 480 V winding supplies an impedance load connected to 120 V winding. The load absorbs 15 KVA at 0.8 pf lagging when load voltage is118 V.
design a resonance circuit with following specifications: L = 10 mH, RL = 4W, Imax = 200 mA, fs = 10kHz, Q = 20. That is, determine the required R, C, and supply Voltage E. For R and C, use the closest standard values.
Using a voltage source Vdd=2.5V and an MOSFET with Vt=0.5 V, Kn'=0.8 A/V^2, W=10um and lambda=0, build a common source amplifier which drives a load resistor of 10k ohms. The input signal to the amplifier is a sine wave with a peak value of 0.15 V..
The total admittance for the following circuit is Hint: YT = G + j[Bc - BL] Siemens; G = 1/R Siemens; Bc = wC Siemens and BL = 1/[wL] Siemens Data: Vin AC = 10 sin 1250t, R = 100, C = 4UF, L = 80 mH
The lithographic system A uses KrF excimer laser source (248 nm) while the lithographic system B uses the I-line of a Hg lamp (365 nm) as the photon source. Give two main shortcomings of the e-beam lithography
Assume you buy a 1 kOhm resistor with +/- 20% tolerance in its value. You would like this resistor to consume at most 2 W of power, otherwise it might burn. What is the highest power supply in V you would use to power it
Ethree-phase, 5 hp, 208 V, 60 Hz induction motor runs at 1746 rpm when it delivers rated output power. (a) Determine the number of poles of the machine. (b) Determine the slip at full load. (c) Determine the frequency of the rotor current.
A certain transducer is modeled with a source Vs and series resistance Rs. The voltage at its terminals is measured with a DVM having internal resistance Ri = 100 Mega ohms and is found to be 12.5 mV; adding a 5 Mega Ohms resistance in parallel
A microwave system requires a +4-dBm audio level to provide 100% modulation. Determine the voltage level required if this is a 600 ohm audio system.
Please explanation how a Parallel RLC Filter circuit behave at Low Frequencies, Resonant Frequency and High Frequencies
Calculate the converter voltage VC1, reactive power, the converter phase current and modulation index.
Once a week a wagon driver leaves his hut and drives his wagon to the river dock to pick up supplies for his town. At 4:05 PM, one-fifth of the way to the dock, he passes the Temple. At 4:15 PM, one-third of the way, he passes the Preetam-Da-Dhaba..
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